Issue |
A&A
Volume 419, Number 2, May IV 2004
|
|
---|---|---|
Page(s) | 563 - 582 | |
Section | Interstellar and circumstellar matter | |
DOI | https://doi.org/10.1051/0004-6361:20035809 | |
Published online | 03 May 2004 |
Planetary nebulae near the Galactic center: Identifications *
1
WIYN Observatory, PO Box 26732, Tucson, AZ, 85726, USA
2
Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium
Corresponding author: G. H. Jacoby, gjacoby@wiyn.org
Received:
5
December
2003
Accepted:
3
February
2004
We surveyed the central degrees of the Galactic center for
planetary nebulae in the light of [S III]
and found 94
PNe that were not previously known, plus 3 that were previously
identified as possible candidates.
For 63 of these 97 objects, we obtained spectra that are
consistent with highly reddened PN while the other 34 could not be recovered
spectroscopically and remain unverified. Of the 94 candidates,
54 and 57 were detected via radio
at 3 and 6 cm, respectively. An additional 20 PNe candidates were
found during follow-up Hα imaging but have not yet been verified
spectroscopically. Based on the properties of IRAS sources in this
region of the Galaxy, and on the total luminosity of the Galactic bulge,
the expected number of PNe is ~250, only 50% more
than the 160 PNe candidates now known.
Thus, surveys for PNe in the bulge are approximately two-thirds
complete with the remainder likely hidden behind dust.
Key words: ISM: planetary nebulae: general / Galaxy: bulge / methods: observational
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.